Measurement of the Relative fraction of ttbar Events Produced Via Gluon fusion in ppbar Collision at s**(1/2) = 1.96 TeV at CDF.

Yamaoka, J.

Technical Information Center Oak Ridge Tennessee

关键词: Gluons;    Fermilab collider detector;    Branching ratio;    Top particle;    Quarks;   

RP-ID  :  DE2007915127

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

In this thesis we present a measurement of the relative fraction of tt events produced via gluon-fusion to the total number of tt events. Using the kinematics of the production and decay of the top and antitop quark pair, we trained a Neural Network to discriminate the gluon-fusion events. The Neural Network was then used as a template to fit for the gluon-fusion fraction in data.